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An experimental study on development of water mist fire-fighting systems for Ro-Ro spaces

Ro-Ro 구역용 미분무 소화설비의 개발을 위한 실험적 연구

  • Received : 2013.08.22
  • Accepted : 2013.10.31
  • Published : 2013.11.30

Abstract

Large scale fire tests were conducted to develop water mist nozzles as a component of fixed water- based fire fighting systems for Ro-Ro spaces and special category spaces. Fire scenarios for this system consist of two cases which are for cargo fire in a simulated truck and for passenger vehicle fire, and each case has 3 different tests according to the position between fixed water mist nozzles and fire source. Every experiment proceeded for 30 minutes and acceptance criteria were based on gas temperature, fuel package's damage and ignition of targets. This study primarily dealt with the experimental results of cargo fire and focused on fire suppression capability in accordance with discharge pressure, flow rate and flow characteristics like swirl and penetration of the developed water mist nozzles. It appeared that low pressure water mist nozzles with about 40 L/min were able to control fire occurred in Ro-Ro spaces.

선박의 Ro-Ro 구역이나 특별범주구역의 화재방호를 위해 설치하는 고정식 수계소화설비의 개발 및 실용화를 위해, 특히 방수량이 적으며 관련기준에서 요구하는 성능요건을 만족하는 미분무 노즐을 개발하고자 실물화재실험을 수행하였다. 본 설비의 화재시나리오는 크게 두 가지로 트럭화물화재와 승용차화재로 구분되며, 각각 고정 설치된 미분무 노즐과 화원과의 세 가지 위치에 대한 시나리오로 이루어져 있다. 모든 화재실험은 30분간 진행되었으며 천장부의 가스온도와 우드펠릿의 손상율, 타깃합판의 착화여부로 판단되었다. 본 논문은 두 가지 화재실험 중 조건이 더욱 까다로운 트럭화재용 미분무 노즐의 결과를 위주로 방수압력과 방수량, 미분무수의 유동특성에 따른 화재실험결과와 화재진압특성을 고찰하였으며, 수십 회의 반복실험 결과 분당 약 40 L의 유량을 가지는 저압 미분무 노즐로 Ro-Ro구역의 화재진압이 가능한 것으로 나타났다.

Keywords

References

  1. J. H. Kwark, "Test method and requirements of fixed water-based fire-fighting systems for the fire protection of Ro-Ro spaces," Journal of the Korean Society of Marine Engineering, vol. 36, no. 6, pp. 744-748, 2012.
  2. IMO Resolution A.123(V), "Recommendation on fixed fire extinguishing systems for special category spaces(SOLAS Regs II-2/37, 53 and 54)," 1967.
  3. IMO MSC.1/Circ.1272, "Guidelines for the approval of fixed water-based fire-fighting systems for Ro-Ro spaces and special category spaces equivalent to that referred to in resolution A.123(V)," 2008.
  4. IMO MSC.1/Circ.1430, "Revised guidelines for the design and approval of fixed water-based fire-fighting systems for Ro-Ro spaces and special category spaces," 2012.
  5. ISO 6780, "Flat pallets for intercontinental materials handling - Principal dimensions and tolerances," 2003.
  6. International Maritime Organization, SOLAS Regulation II-2/37, 53 and 54.
  7. I. C. Jung and K. H. Lee, "Characteristics of ignition and micro-explosion for droplets of water- in-fuel emulsion," Journal of the Korean Society of Marine Engineering, vol. 37, no. 1, pp. 1-8, 2013. https://doi.org/10.5916/jkosme.2013.37.1.1
  8. K. H. Park and J. G. Kim, "Assessment of Turbulence Models for Engine Intake and Compression Flow Analysis," Journal of the Korean Society of Marine Engineering, vol. 32, no. 8, pp. 1129-1140, 2013. https://doi.org/10.5916/jkosme.2008.32.8.1129
  9. J. R. Mawhinney, "Fire protection water mist suppression systems," NFPA Handbook 18th Edition, 1997
  10. Z. Liu and A. K. Kim, "A review of water mist fire suppression systems-Fundamental studies," Journal of Fire Protection Engineering, vol. 10, no. 3, pp. 32-50, 2000.

Cited by

  1. 미분무 시스템이 장착된 화염방지장치의 화재 진화 특성에 관한 연구 vol.15, pp.5, 2016, https://doi.org/10.14775/ksmpe.2016.15.5.117